Android Studio: Can not find Run test choice

Question

When I try to run the unit test in a class, I can not find a Run choice

But I can see it on my teammate laptop in the same project and when clicking on the arrow beside the function and the class name it displays "Nothing here"

Answer 1

Here are some steps you can try to avoid reinstalling android studio, with examples from a project having working instrumented tests.
In general, if you also have a pc where the tests works, I advise you to compare all the following configurations between the two environments. Also try to start the tests with a preview version of Android Studio.

Enable test plugins

Go to Android Studio -> Preferences... -> Plugins and check if the test plugins are enabled (i.e. JUnit)

Update Gradle version

Go to File > Project Structure... > Project and update to the latest Gradle version.

Update Kotlin and Gradle plugin versions

Check if you're using the latest versions in your build.gradle (project level)

classpath 'com.android.tools.build:gradle:7.0.3'
classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.5.31"

Update your test dependencies

In your build.gradle (module level)

android {
    ...
    defaultConfig {
        ...
        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"

dependencies {
    testImplementation "junit:junit:4.13.2"
    androidTestImplementation "androidx.test.ext:junit:1.1.3"
    androidTestImplementation "androidx.test.espresso:espresso-core:3.4.0"
    ...

Remove JUnit group exclusion

In the same file, if present, remove the following exclusion

exclude group: "org.junit.platform" //remove this line